Binder



(No Model.)

L. G. RU'BEL.

BINDER.

No. 445,357. Patented Jan. 27,1891.

I M m m I I M ma mums runs cm. mum-mum, WASHINGTON, a. c.

UNiirEn STATES PATENT OFFIGE.

LEVI G. RUBEL, OF CHICAGO, ILLINOIS.

BINDER.

SPECIFICATION forming part of Letters Patent N0. 445,357,6iated January 2'7, 1891.

Application filed September 18, 1890. Serial No. 365,341. (No model.)

To a, whom it may COILCGIIL.

Be it known that l, LEVI G. RUBEL, a citizen of the United States, residing at Chicago, (look county, Illinois, have invented a new and useful Improvement in Binders, of which the following is a specification.

The object of my invention is to provide a simple, economical, and efiicient device for binding and holding separate sheets of paper, such as order-blanks, do; and the invention consists in the features and details of construction hereinafter described and claimed.

In the drawings, Figure 1 is a perspective view of a binder embodying my improvement; Fig. 2, a similar view of the operating-key; Fig. 3, a cross-section on line 3 of Fig. 1, looking in the direction of the arrow; and Fig. 4, a plan view of the binding-plate.

A A are the covers of the binder; B, the

leaves inclosed between such covers 5 C, abar or plate; D, posts or rods fastened thereto; E, a spring plate or bar, and I the operatingkev.

The covers of a binder embodying my improvement are made of canvas or other suitable material, being preferably stiffened in any suitable manner, as by the use of cardboard. Rods or posts D D, of any suitable dimensions, are secured to a plate 0, as shown in the drawings, and pass through suitable holes made to receive them in the two covers and in the sheets which are to be bound between such covers. There may be any number of these posts desired; but I prefer to use two, which is sufficient for the purpose. I then make a spring plate or binder E. This plate, the construction of which is more particularly shown in Fig. 4, is made of any suitable resilient material, preferably of steel, and is preferably fastened to the outside of the cover A, as shown in Fig. 1. It is provided with a slot E, extending the greater portion of its length, the edges of this slot being so grooved as to form two substantially circular holes 6 and a substantially oval hole 6. The holes e should coincide in number and relative position with the binding-posts D, the diameter of the holes being slightly smaller than the diameter of the posts, for the purpose hereinafter described. A key F is then made of any suitable size and provided with a cam or eccentricf, of suitable dimensions to fit loosely in the hole 6. IVhen the cam is inserted into such hole, the longer axes of both coincide. If now the cam be turned in one direction or the other, so that its longer axishes at an angle with the longer axis of the hole 6, the slot E will be widened, the plate being sprung open, and when the cam is turned back again the plate will close. The key F may be made separate from the plate or may be attached thereto in any manner that will allow of its being turned to operate the device.

The binder acts as follows: The posts D having been passed through the cover A and through the leaves which it is desired to bind, the key is then inserted into the hole 6 and given a quartenturn. This, as before stated, springs the two sides of the plate apart and increases the size of the holes 6, enabling them to receive the posts D. The coverA and plate E are then passed overthe posts and slid down until the cover rests upon the leaves. The cam is then turned back again and through the resiliency of the plate E the holes e,which, as before stated, are of less diameter than the posts D, tend to return to their original size, thereby causing the plate to grasp or clamp the posts in a vise-like grip, fastening. the plate and cover rigidly in place.

The cover may be taken off or raised by springing open the groove E by means of the key and held in any position upon the posts by means of the engagement of the plate E therewith.

I prefer to make use of a plate C, to which to attach the posts D 5 but I do not limit myself to a single plate, since each post maybe provided with a separate plate or head, which would prevent its passing through the holes in the covers and serve to bind the parts together.

It willbe obvious that the shape of the holes e e and e is immaterial, so long as they are able to act as above described, and also that the posts D D may be round, square, or of any other shape, and that similar changes may be made without departing from the gist of my invention.

l. A binder comprising covers A A, binding-posts D D, a spring-plate E, provided with one or more holes 6, corresponding to but of less diameter than such posts, and means whereby such holes may be increased in size to pass over the posts and then allowed to spring back to rigidly bind the plate to the posts, substantially as described.

2. In a binder, a slotted spring-plate E, the slot being grooved to form one or more holes 6, smaller than the binding-posts with which they engage, and a hole e to receive a cam for increasing the size of such holes, substantially as described.

3. In a'binder, the combination of posts D to receive the sheets to be bound, a slotted binding-plate provided With holes 6, corresponding to but smaller than the posts D, a hole 6' to receive a can), and a key F, provided with a cam f, engaging with the hole 6, whereby as the cam is turnedin one direction the slot in the plate E is widened and the size of the holes 6 increased, enabling them to pass over the posts D, and as the cam is turned back the resiliency of the plate E will tend to diminish the size of the holes 6 and then bind the plate to the posts, sub stantially as described.

LEVI G. RUBEL. W itnesses-z GEORGES. PAYSON, SAMUEL E. HIBBEN. 

